An advertisement printing device capable of reciprocal coloring

Abstract

The utility model discloses an advertisement printing device of reciprocating overcoloring relates to printing device technical field, the utility model discloses a base is fixed with symmetrical side support board on the base, and the printing module and toner storage module are installed between two side support boards. Toner storage module contains outer tube and inner tube, and the outer tube is equipped with the discharge gate, and the inner tube has a plurality of storage cavities inside, and the outer periphery rotation cooperation and the door of opening and closing of storage cavity one to one correspond. The sleeve in the both ends of door of opening and closing has the jacks and spring, and the cam of outer tube inside side contacts with the jack, and realizes the corresponding opening or closing of door of opening and closing and discharge gate through the rotation of inner tube. The device can realize the reciprocating overcoloring of different colors through single set of mechanism, and simplifies the structure, reduces the cost, satisfies the demand of advertisement printing to the richness of color and the sense of level.

Description

Technical Field

[0001] This utility model belongs to the field of printing equipment technology, and in particular relates to an advertising printing device that can reciprocate coloring. Background Technology

[0002] In the advertising printing industry, as the market's demand for richer and more layered colors in advertising visuals continues to increase, repetitive ink application technology is widely used in the printing process of various advertising materials. By layering toner multiple times, the color saturation of the image can be enhanced, gradient effects can be achieved, or printing defects can be corrected. It is especially suitable for advertising products such as lightboxes, posters, display boards, and banners that require a strong visual impact.

[0003] However, existing printing devices of this type have significant limitations when repeating color printing: most devices' toner storage structures can only hold a single color of toner. If multiple colors need to be layered and repeated, the same color can only be reused, which cannot meet the needs of complex color matching. If different colors need to be repeated, multiple independent toner storage boxes and corresponding printing mechanisms (such as multiple sets of photosensitive drums and developing rollers) are required. This not only increases the overall size and complexity of the device, but also significantly increases the manufacturing cost and maintenance difficulty of the equipment. Utility Model Content

[0004] The purpose of this invention is to provide an advertising printing device that can repetitively apply ink, which solves the problems of existing printing devices that can only use the same color when repetitively applying ink, or that require multiple toner storage boxes and printing mechanisms, resulting in increased costs and complex structures.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is an advertising printing device that can reciprocate coloring, including a base, on which symmetrical two-sided support plates are fixedly installed, and a printing module and a toner storage module are fixedly installed between the two side support plates.

[0007] The toner storage module includes an outer cylinder fixedly installed between two support plates. The outer cylinder has a discharge port on its circumferential side. An inner cylinder is rotatably fitted inside the outer cylinder. The inner cylinder has several storage chambers inside. The outer circumferential side of the inner cylinder has several opening and closing doors arranged in a circular array. Each of the opening and closing doors corresponds to one of the storage chambers.

[0008] The present invention is further configured such that both ends of the opening and closing door are fixedly connected to sleeves, and a push rod is slidably fitted inside the sleeve, and a spring is provided at one end of the push rod located inside the sleeve.

[0009] The present invention is further configured such that cams are fixedly connected to both inner sides of the outer cylinder, and the outer contour surface of the cams contacts the arc-shaped end faces of several push rods located on the same side.

[0010] The present invention is further configured such that a connecting shaft is fixedly connected to each of the two opposite outer sides of the inner cylinder, and the connecting shaft is in sequentially rotating and engaging with the cam and the outer cylinder.

[0011] The present invention is further configured such that the printing module includes a photosensitive drum rotatably fitted between two side support plates, and a transfer roller and a charging roller are rotatably fitted between the two side support plates, the transfer roller and the charging roller being located below and above the photosensitive drum, respectively.

[0012] The present invention is further configured such that a developing roller and a sponge roller are sequentially arranged on one side of the photosensitive drum and are rotatably fitted between the two side support plates.

[0013] The present invention is further configured such that a laser located above the photosensitive drum is fixedly installed between the two side support plates, and a developing scraper located above the developing roller is also fixedly installed between the two side support plates.

[0014] This utility model has the following beneficial effects:

[0015] This invention features a toner storage module with inner and outer cylinders that work together. The inner cylinder has multiple storage chambers to store different colors of toner. With the linkage structure of the opening and closing door, cam, push rod, and spring, the supply of different colors of toner can be switched simply by rotating the inner cylinder. This eliminates the need for multiple independent toner storage boxes, simplifies the device structure, reduces the size and manufacturing cost of the equipment, and also reduces maintenance difficulty.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a structural diagram of the printing module and the toner storage module;

[0020] Figure 3 This is a schematic diagram of the toner storage module.

[0021] Figure 4 This is a cross-sectional schematic diagram of the toner storage module.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Base; 2. Side support plate; 3. Printing module; 4. Toner storage module; 5. Outer cylinder; 6. Discharge port; 7. Inner cylinder; 8. Storage chamber; 9. Opening door; 10. Sleeve; 11. Top rod; 12. Spring; 13. Cam; 14. Connecting shaft; 15. Photosensitive drum; 16. Transfer roller; 17. Charging roller; 18. Developing roller; 19. Sponge roller; 20. Laser; 21. Developing scraper. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation

[0025] Please see Figure 1-4 This utility model is an advertising printing device that can reciprocate coloring, including a base 1, on which symmetrical two-sided support plates 2 are fixedly installed, and a printing module 3 and a toner storage module 4 are fixedly installed between the two-sided support plates 2.

[0026] Specifically, the toner storage module 4 includes an outer cylinder 5 fixedly installed between two side support plates 2. The outer cylinder 5 has a discharge port 6 on its circumferential side. An inner cylinder 7 is rotatably fitted inside the outer cylinder 5. The inner cylinder 7 has several storage chambers 8 inside. Several opening and closing doors 9 are rotatably fitted in a circular array on the outer circumferential side of the inner cylinder 7. The opening and closing doors 9 correspond one-to-one with the storage chambers 8. The outer cylinder 5 serves as the external fixed structure for toner storage, and the discharge port 6 provides a channel for toner discharge. The inner cylinder 7 is rotatable, and its internal storage chambers 8 are used to store toner of different colors. The opening and closing doors 9 correspond one-to-one with the storage chambers 8. By rotating the inner cylinder 7, the opening and closing doors 9 of a specific storage chamber 8 can be aligned with the discharge port 6 to achieve the discharge of the corresponding color of toner.

[0027] Both ends of the opening and closing door 9 are fixedly connected to sleeves 10. A push rod 11 is slidably fitted inside the sleeve 10. A spring 12 is provided at one end of the push rod 11 inside the sleeve 10. The sleeve 10 provides sliding space for the push rod 11. The push rod 11 can extend or retract under the action of the spring 12. The elastic force of the spring 12 can keep the push rod 11 in contact with the external structure at all times, providing a power basis for the opening and closing of the opening and closing door 9.

[0028] Cams 13 are fixedly connected to both inner sides of the outer cylinder 5. The outer contour surface of the cam 13 contacts the arc-shaped end face of several push rods 11 located on the same side. The cam 13 is a fixed structure, and its irregular outer contour surface contacts the push rods 11. When the inner cylinder 7 rotates, the push rods 11 rotate with the inner cylinder 7 and slide along the outer contour of the cam 13. The cam 13 pushes the opening and closing door 9 to rotate through the push rods 11, thereby opening the opening and closing door 9.

[0029] The inner cylinder 7 is fixedly connected to the two outer sides of the inner cylinder 7. The connecting shaft 14 is connected to the cam 13 and the outer cylinder 5 in sequence and rotates through them. The connecting shaft 14 connects the inner cylinder 7 to the external drive structure, so that the inner cylinder 7 can rotate around its own axis inside the outer cylinder 5.

[0030] The printing module 3 includes a photosensitive drum 15 rotatably fitted between two support plates 2 on both sides. A transfer roller 16 and a charging roller 17 are also rotatably fitted between the two support plates 2. The transfer roller 16 and the charging roller 17 are located below and above the photosensitive drum 15, respectively. The photosensitive drum 15 is the core component for forming an electrostatic latent image. The charging roller 17 can uniformly charge the surface of the photosensitive drum 15. The transfer roller 16 is located below the photosensitive drum 15. By applying a voltage with the opposite polarity to the toner, the toner on the photosensitive drum 15 is transferred to the substrate, realizing the toner transfer process.

[0031] A developing roller 18 and a sponge roller 19 are sequentially arranged on one side of the photosensitive drum 15 and are rotatably fitted between the two side support plates 2. The sponge roller 19 is used to transfer the toner discharged from the toner storage module 4 to the developing roller 18. The developing roller 18 carries the toner to the vicinity of the photosensitive drum 15 and uses electrostatic adsorption to make the toner adsorb onto the electrostatic latent image on the surface of the photosensitive drum 15, thus completing the developing process.

[0032] A laser 20 is fixedly installed between the two support plates 2, located above the photosensitive drum 15. A developing scraper 21 is also fixedly installed between the two support plates 2, located above the developing roller 18. The laser 20 can emit a laser beam to scan the surface of the charged photosensitive drum 15 according to the image information, causing the charge of the irradiated area to change. The developing scraper 21 contacts the developing roller 18, which can control the thickness of the toner layer on the developing roller 18 on the one hand, and make the toner carry a charge opposite to the electrostatic latent image of the photosensitive drum 15 through friction, so as to ensure that the toner can be accurately adsorbed onto the photosensitive drum 15.

[0033] The operation process of this embodiment is as follows: After the device is started, the external drive structure drives the inner cylinder 7 to rotate through the connecting shaft 14. When a certain color of toner is needed, the inner cylinder 7 rotates to the opening and closing door 9 of the corresponding storage chamber 8, which is close to the discharge port 6. At this time, the push rod 11 rotates with the inner cylinder 7 and slides to the higher position of the cam 13 profile. The push rod 11 extends along the sleeve 10 under the push of the cam 13, overcoming the elastic force of the spring 12 to open the opening and closing door 9. The toner in the storage chamber 8 is discharged through the opening and closing door 9 and the discharge port 6 and falls into the sponge roller 19. The sponge roller 19 rotates to transfer the toner to the developing roller 18. The developing scraper 21 rubs against the developing roller 18 to make the toner carry a specific charge, while controlling the thickness of the toner layer on the developing roller 18. The charging roller 17 uniformly charges the surface of the photosensitive drum 15. The laser 20 emits a laser beam to scan the photosensitive drum 15 according to the image and text information, causing the charge of the irradiated area to change. The developing roller 18 will carry the toner to the developing roller 18. The toner is carried to the vicinity of the photosensitive drum 15. Under the action of electric charge, the toner is adsorbed onto the photosensitive drum 15 to complete the development. At the same time, the conveying device moves the substrate. When the substrate passes between the photosensitive drum 15 and the transfer roller 16, the transfer roller 16 applies a voltage with the opposite polarity to the toner, transferring the toner on the photosensitive drum 15 to the substrate. If repeated coloring is required, the conveying device moves the substrate in the opposite direction, so that it passes between the photosensitive drum 15 and the transfer roller 16 again. At this time, by continuing to rotate the inner cylinder 7, the original opening and closing door 9 moves away from the discharge port 6. The inner wall of the outer cylinder 5 squeezes the opening and closing door 9 to close it. At the same time, the push rod 11 slides to the lower position of the cam 13 profile and retracts into the sleeve 10 under the elastic force of the spring 12. The inner cylinder 7 then rotates to the target storage cavity 8, and the opening and closing door 9 is close to the discharge port 6. The above opening and closing door 9 opening and toner discharge process is repeated to realize the switching supply of different colors of toner.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An advertising printing device capable of reciprocating coloring, comprising a base (1), characterized in that: Symmetrical side support plates (2) are fixedly installed on the base (1), and a printing module (3) and a toner storage module (4) are fixedly installed between the two side support plates (2). The toner storage module (4) includes an outer cylinder (5) fixedly installed between two side support plates (2). The outer cylinder (5) has a discharge port (6) on its circumferential side. An inner cylinder (7) is rotatably fitted inside the outer cylinder (5). The inner cylinder (7) has several storage cavities (8) inside. The outer circumferential side of the inner cylinder (7) is rotatably fitted with several opening and closing doors (9) in a circular array. The several opening and closing doors (9) correspond one-to-one with the several storage cavities (8).

2. The reciprocating coloring advertising printing device according to claim 1, characterized in that, Both ends of the opening and closing door (9) are fixedly connected to sleeves (10), and a top rod (11) is slidably fitted inside the sleeve (10). A spring (12) is provided at one end of the top rod (11) inside the sleeve (10).

3. The reciprocating coloring advertising printing device according to claim 2, characterized in that, The outer cylinder (5) is fixedly connected to two inner sides with cams (13), and the outer contour surface of the cam (13) is in contact with the arc-shaped end face of several push rods (11) located on the same side.

4. The reciprocating coloring advertising printing device according to claim 3, characterized in that, The inner cylinder (7) is fixedly connected to two outer sides by a connecting shaft (14), which is in turn connected to the cam (13) and the outer cylinder (5) in a rotating manner.

5. The reciprocating coloring advertising printing device according to claim 4, characterized in that, The printing module (3) includes a photosensitive drum (15) rotatably fitted between two side support plates (2). A transfer roller (16) and a charging roller (17) are also rotatably fitted between the two side support plates (2). The transfer roller (16) and the charging roller (17) are located below and above the photosensitive drum (15), respectively.

6. The reciprocating coloring advertising printing apparatus according to claim 5, characterized in that, The photosensitive drum (15) is provided with a developing roller (18) and a sponge roller (19) that are rotatably fitted between the two side support plates (2).

7. The reciprocating coloring advertising printing apparatus according to claim 6, characterized in that, A laser (20) located above the photosensitive drum (15) is fixedly installed between the two side support plates (2), and a developing scraper (21) located above the developing roller (18) is also fixedly installed between the two side support plates (2).

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